"It's something I came so close to not doing," she recalled. "I had a really great thing with film. People say be grateful for what you have but it's certainly not the kind of thing I was expecting it to be. ... I've seen it all."

Though Barton is looking ahead to the future – she told ET Canada she's developing potential TV projects – back in 2013, Bilson seemed more than willing to revisit her character, Marissa's BFF, Summer Roberts.

"If everyone wanted to do it, I'm sure it would be fun," Bilson told Us Weekly at the time.

At least we'll always have this classic moment:

For a trip down memory lane, relive one of The O.C.'s most memorable kisses by pressing play below!